merchant
noun [ C ] uk/ˈmɜː.tʃənt/ us/ˈmɝː.tʃənt/
商人;（尤指外贸）批发商
a person whose job is to buy and sell products in large amounts, especially by trading with other countries
a wine/grain merchant 酒商／粮食批发商
UK informal disapproving对（令人讨厌之事）入迷的人，好…的人
someone who is involved in or enjoys something that is unpleasant or annoying to others
a gossip merchant (= someone who enjoys talking about people's private lives) 喜欢散布流言蜚语的人
a speed merchant (= someone who drives too fast) 好开快车的人
Idiom
merchant of doom/gloomidiom UK disapproving 悲观派，持悲观态度的人
someone who is always saying that bad things are going to happen
With exports rising and unemployment falling, the merchants of gloom are having to revise their opinions of the economy. 随着出口产品的增加和失业率的下降，悲观派将不得不改变他们对经济的看法。